The automobile car cabin is complex man
–machine interface. Two main goals of Heating
Ventilation and Air conditioning System is
providing thermal comfort and save energy.
Comfort is a subjective feeling and hard to model
mathematically. This is because thermal comfort
is influenced by many variables such as
temperature, relative humidity, air velocity and
radiation. Aim of this paper is to design the
mathematical model for car cabin and to show
feasibility with fuzzy logics. Fuzzy controller is
designed for cabin to control the cabin
temperature.